Engineer s and draftsman s loose-leae sketch and print case



March 16 1926.

c. Jo'RK ENGI NEER'S AND DRAFTSMANS LOOSE LEAF SKETCH AND PRINT CASE"Filed Dec. 29 19a CARL Baoex Patented Mar. 16, 1926.

UNITED STATES rarer OFFIQE.

CARL BJOIR-K, OF WILMINGTON, CALIFORNIA.

ENGINEERS AND nnarrsmans LoosEmnAr SKETCH AND PRINT CASE.

Application filed December 28, 1921. Serial No. 525,368.

To all whom it may concern:

Be it known that I, CARL BJORK, a citizen of the United States, residingat Wilmington, in the county of Los Angelesand State of California, haveinvented a new and use-- holder, engineers or draftsmans case, loosevleaf case, card holder, printing'frame for blue prints or photographsand draftsmans table and'T-square. v d

An object of the invention is to provide a device adapted to hold looseleaf memoranda or other sheetsflat and to protect the same; to providefor convenience of inserting and withdrawing the sheets from the case;to provide a satisfactory combined cover and closure for the case;to'also provide a satisfactory rain andsun shield'for the exposed sheetwhen the case is open; to provide means whereby an engineer or draftsmanmay facilitate his work in the open field.

The invention is not limited to the use of engineers or draftsmen aswill appear from the accompanying description.

The case may be .made of any size or shape and of anysuitable material.

The case is also adapted to hold drawing instruments and artists colors.

The invention is'broadly new, basic. and pioneer in that I provide acase one end and the top of which are mainly open and pro vide aplatform or follower inside such case adapted to hold the leaves flatagainst ledges at the edges of the open top and a cover is provided toclose the open end and cover the open portion of the open top, and alsoto serve as a T-square in connection with the sides or closed end of thecase.

Cheapness and simplicity of construction are other objects. V

Other objects, advantages and features of invention may appear'from theaccompanying drawing, the'subjoined detail description and the appendedclaims." a The accompanying drawing illustrates the invention. p

Figure 1 is a perspective view of the in? vention in use as an engineersor draftsmans sketching pad. Parts are broken away toexpose interiorconstruction.

' Fig. 2 is a side elevation of the .caseshowing the cover adjusted as asun or rain shade, portions being broken away to con tract the view.

' F is an end View of the parts as shown in Fig. 1.

Fig. 4 is an end View showing the platform or follower located; inposition to release the loose leaves of the tablet.

Fig. 5 is a side elevation showing the case used in desk form. I

Fig. 6 is 'a plan View of the case with the cover in place.

Fig. 7 is a bottom plan of the follower. Fig. 8 is a longitudinalsectional view on line 00 Fig.6.

' Fig. 9 is a fragmented end View showing a modified form of means'tohold the follower in leaf releasing position.

Fig. 10 is a plan view. of the cover in use as a T-square and adaptedtobe slid along the longitudinal sides of the holder.

Fig. 11 isa' planview of the cover in use as a T-square and adapted tobe slid along the closed endof the holder. I

The case is of the open top typeand is preferablyconstructedrectangularin shape with a solid bottom ,1, parallel solid side walls 2 and a solidend wall 3. The end opposite the end wall'S is'provided with an opening4 almost coextensive with the space between the side walls 2.. Inwardextensions or end retainers 5 extend froni the free ends of the sidewalls and serve as retainers to hold the angular end projection 6 of thecover 7 said end projection G is formedfat right angles to the cover 7andis rectangu lar in shape and forms an end closure for the open end ofthe case between said extensions, and said cover 7 is also adapted toclose the opening 8 in the top ofthe case which opening is enclosed bythe marginal ledges 9 that form a frame around the opening 8, and aresecured to the end and side walls of the case. Inside the case aplatform or follower 10 is resiliently supportedand arranged to operatetoward and from the marginal ledges 9" and is adapted to .fric-.tionally hold atablet 11 between its upper surface and said marginalledges. It being understood that the tablet 11 may be a plu- .rality ofloose leafs or other construction well known in the art.-

Bow springs 12 having their ends formed with, upturned runners 13 arefixed to the underside of the follower and are adapted to pass throughthe space between the inward extensions or end retainers 5. The spaces14 lo\v the tablet tted to and to be above the end retainers 5 or looselea'ls 11 to be adnn withdrawn from the case.

Means are provided whereby theplatjornl or follower 10 may be easily andsecurely locked or held in theleaf releasing position or away from themarginal ledges, and these means are preterablyin the term oi? a catch15 fixed to and extending; down from the middle ol the follower. and amovable latch 16 which may be readily shifted to and from the path ofthe catch when the follower is fully pressed in. EBaid latch, asyshmvnin Figs. 1, 3, t and 8 comprises a roller 1'? movable by gravity alongtwo w; s 111% formed by the straps l9 that are tired to the bottom 1 ofthe case.

{The roller 17 is arranged to roll from end to end of the Ways accordingas the case tilted from one side to the other and when the latch .rollerrollsto one side it is in the path o'lf the catch and when it is rolledto other side it is out oi the path of the en t InFig. 9 I have shown an'iodilied rlorrn oi latch \rl'iieh comprises a roller 17 movable bygravity along two ways 18 in the llan. es 19 that are fixed to thebottom olf the case.

Pencil holders 520 are also shown cemiected to the follower and the samecomprises a single strip of spring metal lined hyfla central pivot 21 tothe il ellower betwetai the two bends 22, which are at each ondof saidstrip and adapted to :lCCOIlHHOLlzItQ a pencil be" tween the springstrip and the follower so that a pencil or other drawing instrument maybe inserted and will be held by the spring against the :lollower.Artists cohns or other drawing instruments may he held by the bends 22as desired.

Various derices may be used in combine tion with this appliance, as forinstance, a transparelnz protractm' 23 may be inst-r1 I on the cover 7and provided with holes through which a pencil point may be in sortedfor the purpose 0t marking points and drandng linesin a well knownmanner; for the purpose oil? clmrnees only a low or the degree lines areshown. it being apparent that any number of desired markings maybe madewithout departing from the spirit off the invention.

The cover is preferably provided along; its edges with scales Q5 26 andmay be made transparent as of celluloid and the marginal ledges 9 mayalso. be provided 'Wi'h scales 2?, 28. It desired, the protracior may bemade on a separate sheet and inserted in the case.

The angular end projection G which forms the end closure for the openend of the case alsoserres to support the at a desirable angle forWriting when the pad or ea is laid upon a table.

The end retainers 5 are also adairted to receive and hold the cover 7 inposition so as to term a rain and sun shield for the exposed sheet whenthe case is open, as shown in Fig.

llfhetnseoit the device as a photographic printing frame obvious fromthe foregoing, the ":tolhraer being adapted to be pressed in by pressureoi the thumbs or lingersthercon'and. the latch means engaged to hold thefollower in pressed-in position to allow the tracing or transparentsheet above the chemical paper to be inserted into the case, then theollower will be released.

.llhe cover has a further advantage .of being; used in conneijrtion witha compass, :not shown. as a cross bearing :lfor obtaining'shipspositions at sea. This is attained by inserting a point, not shown inthe central hole ot the protractor i2 5 and ii'lsertingotl'ier pointsnot shown, in desired holes of the 1 )I.'Olil'2lt0l to bear onltnownlandobjeets.

The ctwer has a further advantage in that it is adapted to be insertedbetween'the tablot 11 and the marginal ledges?) and maybe withdrawnpredetermined. distance sons to expose for use a small st rip oftlie'tablct. The cover when used in this manner serves as a. guide forwriting andalsoprelents soiling the tablet which oilenthnes occurs byrest ing' soiled hands upon the ti'iblet during writing; operation.

,iinnther t dv ant a go and arran and draft.

gained by constructing mg the parts ot niy onglneers nians loose lea lsltetehand print case as above jl fill'll is that when an engineer is inthe held my device affords hiin a compact and snbstrnitially completedrawing outfit that will assist him in male ing readable sketches. Inmany instances engineers in the held have been handicz'ipped inmakingsketches because they did not hate means accessible with whichthey could d raw straight and p: allel lines and normal lines. extendingther from. The qu'adrill slitetch paper has to some extent servedthispurpose but with my sketch device plain paper may be used and the cover7 may be used as a l sqnare by reason ot'the-angiilar end pro;ie .-tion(3 being; adapted to cooperate with either the closed end or thellongltndinal sides of the case as shown in Figs. 10 and 11. l

I claim:

1. A case having a bottom, an open top, side walls an open end and anend all; marginal ledges secured to said end and side Walls forming afranie around the open top; a detachable co'rer dtlftjJl'GtllL-O Form aclosure he said open top, and having an angular end projection to closesaid open end and providing means Whereb said cover may he used as aT-square with said caseyatdh lower in said case adapted to hold a tabletbetween its upper surface and said ledjees; resilient means adapted tohold said tellowor againstsaid ledges; and means to hold said followeraway from said ledges for the purpose set forth.

2. A case having an open top, an open end, a bottom, side walls and anend wall; marginal. ledges which form a frame around the open top; meansfor removably securing a tablet in said case; and a cover adapted toclose said open top and having anangular end projection which is adaptedto close said open end, said cover being provided along its edges withscales and having holes designating degree lines of a protractor.

3. A case having an open top; marginal ledges which form a frame aroundthe open top; a follower in said case; and gravity operated latch meansadapted to hold said follower away from said ledges and adapted to bereleased by pressure on said follower and by gravity.

A. A case having side walls, an end wall, an open top and an open end;means for holding-a. tablet in said case, and a cover having an angularprojection which is adapted to form a closure for theopen portions ofsaid case and also adapted to be used as a T-square in connection withthe sides and end of the case.

5. In a device of the character described, a case having a bottom, anopen top, side walls and an end wall; marginal ledges secured to saidend and side walls; a follower in said case; springs fixed to saidfollower and adapted to resiliently hold said follower against saidledges; a catch secured to said follower; and a movable latch mounted onthe bottom of the case that is adapted to engage said catch and hold thefollower away from the marginal ledges for inserting and removing atablet from the case.

6. In a device of the character set forth, a case; means for holding atablet in said case whereby the top sheet of said tablet will be exposedfor use; a cover adapted to form a closure for said case, said coverhaving an angular projection adapted for use in connection with saidcase as a T-square; and means on said case adapted to retain said coverin position for use as a rain and sun shield for the exposed sheet whenthe case is open.

7. A case having an open top, a bottom, side walls and an end wall;marginal ledges which form a frame around said open top; a followerresiliently mounted in said case and adapted to hold a tablet againstsaid ledges; and means comprising a latch, flanges fixed to the bottomof said case and having ways, a roller mounted in said ways adapted toengage said latch for holding said follower away from said ledges wheninserting and withdrawing the tablet from said case. 7

8. A case having a bottom, an open top, side walls and an end wall;marginal ledges secured to said end and side walls forming a framearound said open top; a detachable cover adapted to form a closure forsaid case; a follower in said case; resilient means adapted to hold saidfollower against said ledges; means to hold said follower away from saidledges comprising a catch fixed to and extending down from saidfollower, and a movable latch adapted to be moved by gravity to and fromthe path of said catch for the purpose set forth.

9. Acase having an open top; marginal ledges which form a frame aroundthe open top; a follower in said case; resilient means case and beingadapted'to hold a tablet between its upper surface and said ledges andalso adapted to be pressed away from said ledges by pressure on the topof said follower; and gravity operated latch means to hold said followeraway from said ledges after said follower has been pressed away fromsaid ledges, and to release said follower.

11. A case having an open top, side walls, and an end wall; ledgessecured to said end and side walls; a follower in said case; resilientmeans adapted to hold said follower against said ledges; a cover adaptedto close said open top; and means to hold said follower away from saidledges comprising a catch and a movable latch adapted to be moved bygravity to and from the path of said catch for the purpose set forth.

In testimony whereof, I ha ve hereunto set my hand at Los Angeles,California, this 21st day of December, 1921.

CARL BJORK.

